Home / 388,285.20-582,427.40-122,068.98

Finding the Fourth Proportional to 388,285.20, 582,427.40 and 122,068.98

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Solution

The fourth proportional to 388,285.20, 582,427.40 and 122,068.98 is: 183,103.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,285.20 : 582,427.40 = 122,068.98 : x
  2. Step 2: Convert to fraction form
    388,285.20/582,427.40 = 122,068.98/x
  3. Step 3: Cross multiply
    388,285.20x = 582,427.40 × 122,068.98
  4. Step 4: Simplify right side
    388,285.20x = 71,096,318,031.71
  5. Step 5: Solve for x
    x = 71,096,318,031.71/388,285.20
  6. Step 6: Final answer
    x = 183,103.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.